Looking for a job

hayk simonyan

@hayksimonyan

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I build and lead React platforms, modernizing complex products across banking, healthcare, and betting.

Armenia

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What I'm looking for

I’m open to remote opportunities where I can build and modernize React applications, guide architecture decisions, solve difficult delivery problems, and mentor front-end engineers.

At DataArt, I lead a five-person front-end team building mobile and web banking platforms with React, Redux, and Node.js backend-for-frontend services. I also contribute to architecture decisions for a large legacy .NET-to-React migration.

I’m often brought into difficult codebases and delivery situations. On a project with missed deadlines and high bug volume, I identified unclear QA reporting as a root cause, drove process changes, and helped bring deadlines and bug counts under control through a focused four-month effort.

Previously, I rebuilt legacy React games at Live Vegas and led releases of three standalone games, while hiring and mentoring front-end developers. Across banking, healthcare, and betting products, I build clean, well-tested React and TypeScript applications and enjoy mentoring engineers earlier in their careers.

Experience

Work history, roles, and key accomplishments

Current

Senior React/JavaScript Developer

Current

DataArt

Sep 2021 - Present (5 years 2 months)

- Led a 5 person front-end team building a mobile and web banking platform for a major bank, using React, Redux, and a Node.js backend-for-frontend layer with dedicated services (e.g., PDF generation); conducted code reviews and mentored team members
- Served as one of 10 front-end developers (within a cross-functional team of 30+, including QA, backend, and PM) contributing to architecture and te

React Redux NodeJS Redux toolkit TypeScript Material UI Tanstack Query Next.js Git Bitbucket Web Content Accessibility Guidelines (WCAG)Axe Reselect

Team Lead

Live Vegas

Jul 2023 - Apr 2024 (9 months)

- Took over a legacy React application containing 8 games in a single, unmaintained ~15,000-line file; made the call to rebuild individual games from scratch rather than extend the unstable codebase
- Interviewed and hired 2 front-end developers; mentored and managed the growing team, conducting code reviews and sharing development techniques
- Led the team to release 3 standalone games under the

React Redux CSS in JS Tailwind

JavaScript Instructor

Armenian Code Academy

Nov 2021 - Feb 2022 (3 months)

- Taught JavaScript fundamentals and best practices to aspiring developers

Senior React/JavaScript Developer

SFL - We Do Software ! (acquired by DataArt)

Apr 2021 - Sep 2021 (5 months)

Worked as Senior React/JavaScript Developer at SFL - We Do Software ! (acquired by DataArt).

Frontend Team Lead

Prisma Gaming

Nov 2019 - Apr 2021 (1 year 5 months)

- Built and maintained multiple admin panels and a customer-facing website within a 3-person front-end team, using React, Redux, and Redux Saga
- Implemented UI with both Material Design and Ant Design component libraries, balancing design-system consistency across projects
- Conducted code reviews and mentored front-end team members

React Redux Redux Saga Ant Design LESS SASS CSS Modules React Router

Frontend Developer

Digitain

Apr 2018 - Nov 2019 (1 year 7 months)

- Made a personal career transition from PHP to front-end development with React
- Built an admin panel using Ant Design Pro
- Developed 3 real-time betting games using WebSockets for live data communication
- Conducted code reviews and mentored team members

React Redux Ant Design Pro Sockets

Team Lead

HackTech LLC

Jan 2017 - Nov 2017 (10 months)

- Served as team lead on 2 projects for US-based clients, managing the team and conducting PR code reviews
- Built an event queue management application, helping organizers manage attendee queues during live events
- Built an Android and web application allowing parents to monitor and control their child's device usage

PHP Laravel HTML CSS JavaScript jQuery JSON Gitlab

Web Developer

Helix Consulting LLC

Apr 2014 - Sep 2016 (2 years 5 months)

- Worked as a PHP developer building projects from scratch using Zend Framework, Laravel, and Symfony
- Wrote automated tests with PHPUnit; worked with MySQL, MariaDB, Redis, and Elasticsearch
- Used Composer, Gulp, and Grunt for dependency management and build automation; developed in a Vagrant/VirtualBox environment on Linux (Ubuntu), debugging with XDebug in PHPStorm
-Worked with Git and SVN fo

PHP Zend Framework Laravel MySQL PHPStorm Git MacOS SOAP RESTful Web Services Symphony Redis MariaDB PHPUnit Elasticsearch Gulp Grunt Vagrant Linux XDebug Apache Postman JavaScript jQuery

Web Developer

Webmaker Studio

Sep 2013 - Mar 2014 (6 months)

- Built 3 WordPress-based sites from scratch, handling both front-end markup and back-end development, using HTML, CSS, JavaScript, jQuery, PHP, and MySQL

- Implemented several widget customizations on an ongoing project

HTML CSS JavaScript jQuery AJAX MySQL PHP PhpMyAdmin WordPress Sublime Text

Junior Web Developer

AlphaSoft

Sep 2012 - Sep 2013 (1 year)

- First professional role in web development; learned core web technologies including HTML, CSS, JavaScript, jQuery, PHP, MySQL, and WordPress

- Worked on an ongoing WordPress-based project